Ditiola radicata (Alb. & Schwein.) Fr.
no common name
Dacrymycetaceae

Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.

Introduction to the Macrofungi

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Map

E-Flora BC Static Map

Distribution of Ditiola radicata
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Species Information

Summary:
Also listed in Jelly category. Ditiola radicata is characterized by rooting fruiting bodies with a different microscopic structure in the cap and the stout stem, and tardily 1(2)-septate spores. Young fruiting bodies are often covered by a white "veil" before the spore-bearing surface develop. This description is for var. radicata. Var. gyrocephala is distinguished by more prominent stem, normally darker color, and 3-septate spores. (McNabb 1966).
Microscopic:
spores (8.5)10-13(14.5) x 3.5-4.5(5) microns, cylindric to slightly curved-cylindric, thin-walled with thin septa, tinted, apiculate, tardily 1(2)-septate at maturity, germination by germ tubes, occasionally by conidia; probasidia 33-50 x 3.5-5 microns, cylindric-subclavate, with basal septa, becoming bifurcate; hymenium "amphigenous, composed of basidia and occasionally simple, cylindric dikaryophyses"; structure of cap and stem are different: cap "composed of thin-walled, septate, branched hyphae of smaller diameter" [than those in stem] "loosely arranged", stem "composed of thick-walled, sparingly septate and typically unbranched hyphae lying more or less parallel and projecting into the pileus"; clamp connections absent from all hyphae; hairs on stem thick-walled, roughened, septate, with terminal cells often slightly inflated, (McNabb), spores 8.0-9.75 x 3.75-4.0 microns, elliptic, none seen with septa, (Reid)
Spore Deposit:
yellow (Buczacki)
Notes:
Var. radicata is found in BC, AB, NS, ON, AZ, CA, GA, IA, MA, MD, NC, NH, NY, OH, and VT, (Ginns), and the British Isles, Finland, France, Germany, Norway, Sweden, and Switzerland, (McNabb). Var. gyrocephala is found in NS, ON, LA, MA, ME, MN, MS, NJ, NY, and SC, (Ginns). D. radicata is also found in Estonia and Russia, (Raitviir), and the United Kingdom (Reid, who notes that Lowy collections are suspect because they are said to have clamp connections).

Habitat and Range

SIMILAR SPECIES
D. radicata may be confused with stemmed species of Dacrymyces, but it is readily distinguished microscopically by the difference in the structure of the cap and stem, (McNabb). Dacrymyces capitatus is very similar when immature, because the heterogeneous internal structure of Ditiola radicata does not become evident until late in development: the only sure way of distinguishing these two is to ensure that one has mature fruiting bodies while checking the internal structure, and the septation of the spores: those of Ditiola radicata are tardily 1-(2-)septate, and those of Dacrymyces capitatus are 3-septate with the septa often thickened, (Reid).
Habitat
conifer wood and hardwood, fallen limbs with bark, usually barkless wood, associated with a brown rot, Abies balsamea, Betula spp., Pinus sp., Pinus contorta, Quercus sp. Quercus coccinea, cedar, (Ginns), gregarious on conifer wood, (McNabb), all year (Buczacki)

Synonyms

Synonyms and Alternate Names:
Ceriporiopsis pannocincta (Romell) Gilb. & Ryvarden Mycotaxon 0.916666666666667 364
Gelatoporia pannocincta (Romell) Niemela Karstenia 25(1): 23 1985
Polyporus sanguinolentus Alb. & Schwein.: Fr.
Rigidoporus sanguinolentus (Fr.) Donk